Control rod housing



SePt- 20, 1932 l R. K. WINNING 1,878,357

CONTROL ROD HOUSING Filed Jan. 28, 1929 faam A TTORNEYS.

Patented Sept. 20, 1932 nonni-az 1in-WINNING, `or WAUWATOSA, WISCONSIN, ASSIGNOR To CLUM; MANUFAO- -T 'iiavassi TUBING COMPANY, or MILWAUKEE, WISCONSIN, a` 'COnrOnAfrrON or WISCONSIN CONTROL non .HOUSING` I f p 1 Appl'icanon'lei Januaryes, 1929. serial No. 335,510.. i i

lThis invention relates to improvements in jointed .tubular supports for' control rod housing assemblies and the like. The method of assembling the housing herein described is `claimed in 'my divisional application Serial No."398,676 filed l@ctober l0, 1929; i

f It is the object of the invention Ito provide a novel and simplified form of control rod d housing lending itself to `manufacture in C10 quantities at reduced cost and providing for added convenience ofassembly of a mounting sleeve and a tubular housing comprising afsupport for the movable 'parts of the cone trol. *Y Y In the drawing-.4-

Figure l isa plan vievvof a housing embodying this invention. as it appearsv appliedto the dash of a motor vehicle or the like. f Y

Figure12is anjenlarged jaxial `section in ya vertical plane Ythroughthe housing shown in Figure 1;

Figure 3 is a still further enlarged detail of the blank from Which the housing shown i? in Figures l and 2 is formed;

Figure 4; 1s a detail 1n transverse section on -a smaller scale than Figure 3 showing the housing in process of formation;

Figure 5 is a transverse section taken in the plane indicated at 5 5 in Figure 2.

ence numerals throughout the several views.

The housing comprises a tubular supporting element l() which may conveniently be die-cast, and a tubular sheath or housing member l1 Which is preferably made from a stamped blank and formed as hereinafter disclosed. rlhe die-cast i supporting housing of the housing is provided at 12 With a flange and an annular bezel 13 which covers he end of the housing and the flange and constitutes a head adapted to abut the outerl surface of a dash 14. A nut 15 threaded to the supporting member 10 is tightened against a lock Washer 16 which is in face contact with the dash in opposition to the head above described. The clamping engagement of these parts upon the dash positions 4the entire device.

The control rod 2O is axially slidable d Y trol rod and knob takev their angular posi? Like parts are identified by similar refer through the housingV and is provided exterior-V ly thereof With a knob 21. Itis desirable tov maintain this knob ina predetermined Y positionof rotation in order thatany letter- A ing or design appearing onthe face thereof- 55 may be kept erect. In order to accomplish this resulta slot is'providedv atl 22 in the sheathportionll of the; housingand a rivet 23 extends through this slot into engagement With rod 20 and is upset at 24 to prevent its loss during the reciprocation ofV the rod. The rivet moves in slot 22and serves to keep the rod and knob in predetermined angular relation tothe housing; An opening formed at 25 in the housing permits the introduction, of a tool to perform the riveting operationV `Which upsetsrivet 23 in the manner shown. Vat 24. The arrangement vvherebyV this riveting operation is conducted Within the housing makes-the housing much stronger than ""0 it would be if the rivet were extended through anothervslot similar and opposite to the slot 22 and Were riveted outside of the housing as has heretofore been the practice;

` flnthe4 manufacturejof the tube portion 11 of the housing itis necessary to providefor a meansof attachment of such portion to the supporting sleeve lOwvhich will insure against relative rotation of the parts since the contion from the tube and the tube must depend for its angular position upon the mounting 'supportflfk flt is also. necessary toprovide economically "for the attachment ofthe helical Wiresheath26 tothe parts alreadyde scribed. Through this sheath extends `the Bowden Wire to be operated by the control Y rod, such Wire being connected thereto as Y disclosed in myco-pending application Ser, No. 163,084 filed January 24,1927. Both of bi thesev objectives are cared for in the blank f from which the tube 1l is formed.

Figure 3 shows the blank. lIt Will be noted that-itiscut away Vat 22 alongits side margins sothat when such sidermargins are ruledl into adjacent positions the portions cut away Will col-,operate to provide the slot 22 in Which 'the guide rivet 23 operates. At 25 appears" the holevvhich is subsequently to enable the,

riveting operationto be conducted Withinthe m@ Asimilar to the teeth of a saw but of greater tube 11. At 27 the blank is transversely extent. These'notches extend across the At 29 the blank is provided with va series 'of angularly disposedand mutually parallel ribs adapted in the completedv tube, to serve as threads into which the end of the wire sheath 26 may be screwed. In order to-'limit the relative engagement of ythejparts the Y thread is mutilated by providing at'B() a1 boss which intersects the last ofthev ribs 29 and lisof materially greatery height than such ribs.,V A A t t The blank being completedfinthe form shown in Figure 3, it is necessary to formit,`

tothe shape of a tube, Y

It would be difficult if. not limpossible to, bring the side margins of the blank into mutual abutment by any ordinary forming process. Accordingly the blank is first formedr as shown in Figure l whereby the intermediate portion 3l thereof is given a curvature which is opposite to that which. it will ultimately have in the completed tube and the side marginal portions 32 are each formed to approximately the-exact curvatureV of the completed tube.. With the side marginal portions thus formed to the desired curvature it is a relatively simple matter to exert presn sure to reverse the curvature 'of they central portion 3l ofthe blank, thereby forcing thesid-e margins into abutment.. v

The completed tube 11 is now-introduced into the end of the supporting member l0 with the rib 27 abutting the shoulder 33 vof' the support. The end' portion 3ft-of the support is now spun inwardly over the rib 27 and in the course of thespinningoperation the'metal of the support is forced into ythe notches or serrations 28, thereby perfecting a relatively non-rotatablejoint between the.

parts.

I-Ielix 26 is now screwed into the threads prising a supporting sleeve,V panel clamping means upon said sleeve, and a tubularextension ttedwithin .saidl sleeve and provided therein with a peripheral rib about whichv an integral portion. ofsaid sleeve is interlockingly engagedaid tube compris-ing a sheet metal blank having side marginal portions in-sube stantial abutting relation. c

means: carried yby. said sleeve, andv a tubularl said rib andthe teeth thereon.

extension fitted Within said sleeve and provided therewithin with a peripheral rib upon the peripheral surface of which are longitudinally extending teeth crossing said rib, said sleeve having integral portions embracing said rib and intimately interlocked with 3. A device of the character described, comprising a. `supporting sleeve, panel clamping means. carried by said? sleeve,- and a tubular extension fitted Vwithin said sleeve and'provided therewithin with a peripheral rib upon the peripheral surface of Which are longitudinally'vextending teeth crossing said rib, said' sleeve having integral portions embracing said rib and intimately interlocked with said rib and the teeth thereon, said tubular extension comprising a sheet metal, blank in such f .orm that portions of itslateral margins. arev in substantial abutment, the spacing between thefteeth thereof being, such as to= permit of the forming of said extension from a flat blank in which said rib. embossed and, Y

. serrated..

4. A device ofthe character described, comprising a supporting` sleeve provided with. an., internal shoulder, an extension tube, comprising a sheet metal blank having abutting side marginal portions and a peripheral rib said tube being iitted internally tasai-d` sleeve with saidA rib.. seated against said shoulder, teeth extending longitudinally ot saidy tube' across said rib, and means integralWi-th said sleeve interlocked in intimate engagement'` about `said rib, and the teeth thereof., f

RGBERT K. VYINNING.v 

